4.3 Internal Circuitry
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4.3 Internal Circuitry
Input Circuit
Output Circuit
SM7860 side
External device side
EXT_DC2
Input signals
24 VDC
SM7860 side
External device side
COM
5 to 24 VDC
Output signals
Input Signals
Input method
Photocoupler-isolated input
Input voltage
LOW: 0 to 0.5 V, HIGH: 24 V±10%
Output Signals
Output method
Photocoupler-open collector output
Output voltage/ current
LOW < 0.5 V, HIGH > 5 to 24 V (depends on external voltage)/ Max. 5 mA
